Sleep colors your view of the world: Study suggests sleep may restore color perception

Prior wakefulness caused the color gray to be classified as having a slightly but significantly greenish tint. Overnight sleep restored perception to achromatic equilibrium so that gray was perceived as gray. The study involved five people who viewed a full-field, homogenous stimulus of either slightly reddish or greenish hue. The observers had to judge whether the stimulus was greener or redder than their internal perception of neutral gray.

Read the whole article on Science Daily

More from Science Daily